Plasma-Active: Make widget explorer more friendly on touch devices.
Review Request #119384 - Created July 21, 2014 and submitted
This patch make the widget explorer more friendly on touch devices.
You should also center it horizontally
I'm not sure it it should add it immediately or add it to a list and then mass-add on ok pressed, let's try to see what happens with immediate add+close of the window
in this case we want focus and to close it when the focus gets lost (clicked outside)
don't hardcode, use a good margin based on units.gridUnit (that makes it remain a couple of centimeters at left, right and top)